CY2DP818ZXC-2

Overview

The CY2DP818ZXC-2 is a 1:8 clock fanout buffer manufactured by Infineon Technologies (originally Cypress Semiconductor). It operates on a single 3.3V supply and supports a maximum frequency of 350 MHz. The device features a configurable input that accepts LVDS, LVPECL, or LVTTL signals via the InConfig pin. It provides eight pairs of LVPECL outputs with individual enable/disable control. Key electrical parameters include a typical propagation delay under 4 ns, output skew of 0.2 ns, and dynamic power consumption of 2.0 mA/MHz. It is housed in a 38-pin TSSOP package.

Feature Summary

• Single-input configurable for LVDS, LVPECL, or LVTTL logic families
• Eight pairs of LVPECL differential outputs with independent enable pins
• Low propagation delay (typical < 4 ns) and low output skew (0.2 ns)
• Operates at frequencies up to 350 MHz with 3.3V supply

Applications

• Data communications clock management
• Distribution of LVPECL-based clock signals
• Level translation from single-ended inputs to LVPECL

Procurement Notes

Verify component authenticity as this part was originally produced by Cypress Semiconductor before its acquisition by Infineon. Confirm the specific ordering suffix 'ZXC' corresponds to the commercial temperature range (0°C to 70°C) and tape/reel packaging if required. Check current availability status as legacy components may have limited stock.

Selection Notes

Select the CY2DP818ZXC-2 when a 1:8 fanout ratio with LVPECL outputs is required. Ensure the input signal matches one of the supported configurations (LVDS, LVPECL, or LVTTL) and configure the InConfig pin accordingly. For industrial temperature ranges (-40°C to 85°C), consider the 'ZI' suffix variant instead.

Part Context

This component belongs to the CY2DP series of network circuits produced using 0.35 micron CMOS technology. It is designed to reduce loading on input clocks by providing a large fanout from a single source. The series is optimized for high-speed data communication applications requiring precise clock distribution.

Replacement Considerations

Direct replacements within the same family include CY2DP818ZI-2 for industrial temperature ratings. Variants with different packaging, such as CY2DP818ZC-2T (tape and reel), offer form-factor alternatives while maintaining identical electrical specifications.

FAQ

How is the input type configured?

The input receiver is configured via the InConfig pin (Pin 7). A logic high selects LVTTL/LVCMOS, while a logic low selects the default LVDS/LVPECL differential input.

What is the maximum operating frequency?

The device supports operation up to 350 MHz with a standard load circuit and 45% to 55% duty cycle.

How are the outputs enabled or disabled?

Each output pair has a dedicated enable pin (EN1 through EN7). Pulling these pins high enables the respective outputs, while connecting them to GND disables them. Note that EN7 controls both Q7 and Q8 pairs.